Welcome to JUnit 5

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" summary

JUnit 5 (released Sept; baseline Java 8) modernizes testing with a Jupiter programming model, modular jars (vintage, platform, jupiter), and full backward compatibility so existing JUnit 4 suites run without rewriting. Key, practical features demonstrated: assertThrows and assertAll with lambdas, constructor/method injection and programmatic extensions (replace RunWith/Rules), richer parameterized tests (methodSource, CSV, externalized providers, argument aggregators), Testcontainers + Spring Boot demos, and Maven/Gradle tooling notes (Surefire/Failsafe config, Surefire 2.21+, Gradle 4.6+).

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" chapters (12)

1. 0:00Introduction
2. 1:03Break
3. 5:00Advantages of automated testing
4. 6:46Why JUnit 5
5. 8:40Extension Points
6. 10:28Modules
7. 12:11Testing
8. 14:38Writing Tests
9. 20:28Dependency Injection
10. 34:06Test Interfaces
11. 37:56Filtering Disabling Tests
12. 45:21Tool Support

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